Using Affirm on Amazon: How to buy now, pay later this Prime Day

How to avoid the budgeting-to-overspending pipeline ahead of Amazon Prime Day.
By Leah Stodart and Elizabeth de Luna  on 
Amazon logo, Affirm logo, and Amazon package with purple and blue tint
What does the option to delay payment mean for one of the most click-happy shopping days of the year? Credit: Amazon / Affirm / Mashable photo edit

Affirm is the first BNPL (Buy Now, Pay Later) service to be available directly through Amazon Pay, and shoppers love it. On Prime Day 2022, BNPL use went up 13 percent compared to 2021, and an even larger increase in BNPL use was seen during Cyber Week 2022.

The ability to pay for items in installments can sweeten your Prime Day prospects. But before going BNPL-wild on your Prime Day haul, there are some factors to consider about Affirm versus other BNPL apps, as well as the advantages and disadvantages of using these tools in general.

Why Buy Now, Pay Later is so appealing

Layaway programs were popular with shoppers in the '90s until they were overtaken by credit cards. But there is a key difference between layaway and BPNL. When you put an item on layaway, it was held for you until you paid it off, at which point you could take it home. With BPNL, you get the goods shipped to you right after you order and then pay off that item in installments.

When combined with Amazon's typically lightning-fast shipping and Affirm's lack of late fees, BPNL can make big purchases feel easier to stomach.

Affirm's interest rates typically range from 0 to 30% APR based on your credit and on the number of payments you select across three to 48 months. Different plans are available for different purchase amounts, and the minimum purchase amount to use Affirm is $50. Affirm's APR calculator can help you estimate how much interest you'll rack up on a certain purchase, which could hit $100 or more if you get a loan for, say, a pricey piece of furniture.

When it's wise to buy now and pay later

  • For some big purchases, using BNPL services may make sense. Breaking up the cost of big investments like a new 4K TV or premium robot vacuum can be easier to manage over time than laying down the whole amount in one go.

  • Using BNPL services on necessities like groceries depends on your habits. Habitually funding little daily expenses (like Starbucks) with an installment app can trigger a domino effect of debt, but may work better if you're buying something like toilet paper in bulk.

  • When used responsibly, apps like Affirm can also help you work around the timing of your paycheck and monthly costs that require an up-front payment, like rent. Beware that Affirm's "soft inquiry" to determine your credit won't affect your credit score, but the company doesn't promise to report your payment history to credit bureaus. To make sure you pay on time, we recommend turning on automatic payments and confirming that your payment method won't expire over the pay period.

When you shouldn't buy now and pay later

  • Before purchasing with BPNL, consider whether you'd buy that item if you didn't have the option to break up the payment.

  • Don't snag something just to hit Affirm's $50 minimum.

  • Make a wishlist ahead of time if you have to, and hold yourself accountable. The devil on your shoulder saying "You need this, though" can get louder when something is on sale. Especially on Prime Day, you don't want to cancel out your savings with a serotonin booster that you didn't know existed five minutes ago.

  • Impulse purchases may feel less risky at the moment, thanks to tools like Affirm. But they can swiftly feel unnecessary once the Affirm reaper returns for payment month after month. Making a series of small payments can create the harmful illusion that you're spending less money. While that's technically accurate (and admittedly blissful) for the first few months, you'll still be spending the same amount of money by the time you've paid out every installment.

Topics Amazon Prime Day

Frequently Asked Questions


Affirm performs a soft pull that won't affect your credit score. However, there's no guarantee that Affirm won't report your payment history to credit bureaus. Making late payments to your Affirm plan (or not paying at all) could still indirectly affect your credit score.


Amazon's only official buy now, pay later options are through Affirm and Amazon's own Monthly Payments plan, meaning these are the only integrated BNPL options that will show up directly through Amazon. To use Afterpay specifically, you will have to open Amazon through the Afterpay app.

Leah Stodart
Leah Stodart
Senior Shopping Reporter

Leah Stodart is a Senior Shopping Reporter at Mashable. She covers shopping trends, gift ideas, and products that make life easier, specializing in vacuums, TVs, and sustainable swaps. She graduated from Penn State University in 2016 and is watching horror movies or "The Office" when she’s not shopping online herself. You can follow her on Twitter at @notleah.

Mashable Image
Elizabeth de Luna

Elizabeth is a culture reporter at Mashable covering digital culture, fandom communities, and how the internet makes us feel. Before joining Mashable, she spent six years in tech, doing everything from running a wifi hardware beta program to analyzing YouTube content trends like K-pop, ASMR, gaming, and beauty. You can find more of her work for outlets like The GuardianTeen Vogue, and MTV News right here


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